[
https://issues.apache.org/jira/browse/AMQ-4361?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14969255#comment-14969255
]
Gary Tully commented on AMQ-4361:
---------------------------------
[~shendley] thanks, sorted that IllegalMonitorStateException
> Deadlock during close while publishing to flow-controlled queue
> ---------------------------------------------------------------
>
> Key: AMQ-4361
> URL: https://issues.apache.org/jira/browse/AMQ-4361
> Project: ActiveMQ
> Issue Type: Bug
> Components: JMS client
> Affects Versions: 5.6.0, 5.8.0
> Environment: Windows, Linux, JDK 1.6
> Reporter: Sam hendley
> Assignee: Timothy Bish
> Fix For: 5.9.0
>
>
> TestCase on github:
> https://github.com/samhendley/activemq-close-deadlock-bug
> The deadlock occurs when we are using TcpTransport to a flow-controlled queue
> and we then try to gracefully shutdown the application. The close operation
> hangs forever because it is trying to send a "close packet" to the server. It
> never gets the chance to send that request because the socket is blocked by
> the publishing thread. This stops my publisher from shutting down and causes
> us to orphan threads during shutdown.
> I have verified this bug occurs on atleast activemq 5.6.0 and 5.8.0 and on
> linux and windows using JDK 1.6.
> I don't need a fix for the bug necessarily, just a way to gracefully shutdown
> my publisher if I get into this state.
> Partial Stack Trace During failure
> "ClosingThread" prio=6 tid=0x045ce000 nid=0xa84 waiting on condition
> [0x04ddf000]
> java.lang.Thread.State: WAITING (parking)
> at sun.misc.Unsafe.park(Native Method)
> - parking to wait for <0x23fc52d8> (a
> java.util.concurrent.locks.ReentrantLock$NonfairSync)
> at java.util.concurrent.locks.LockSupport.park(LockSupport.java:156)
> at
> java.util.concurrent.locks.AbstractQueuedSynchronizer.parkAndCheckInterrupt(AbstractQueuedSynchronizer.java:811)
> at
> java.util.concurrent.locks.AbstractQueuedSynchronizer.acquireQueued(AbstractQueuedSynchronizer.java:842)
> at
> java.util.concurrent.locks.AbstractQueuedSynchronizer.acquire(AbstractQueuedSynchronizer.java:1178)
> at
> java.util.concurrent.locks.ReentrantLock$NonfairSync.lock(ReentrantLock.java:186)
> at java.util.concurrent.locks.ReentrantLock.lock(ReentrantLock.java:262)
> at
> org.apache.activemq.transport.MutexTransport.oneway(MutexTransport.java:66)
> at
> org.apache.activemq.transport.ResponseCorrelator.oneway(ResponseCorrelator.java:60)
> at
> org.apache.activemq.ActiveMQConnection.doAsyncSendPacket(ActiveMQConnection.java:1304)
> at
> org.apache.activemq.ActiveMQConnection.asyncSendPacket(ActiveMQConnection.java:1298)
> at
> org.apache.activemq.ActiveMQSession.asyncSendPacket(ActiveMQSession.java:1901)
> at
> org.apache.activemq.ActiveMQMessageProducer.close(ActiveMQMessageProducer.java:173)
> at
> org.activemq.bug.DeadlockDuringCloseTest$2.run(DeadlockDuringCloseTest.java:83)
> at java.lang.Thread.run(Thread.java:662)
> "PublishingThread" prio=6 tid=0x045cd800 nid=0xb84 runnable [0x04d8f000]
> java.lang.Thread.State: RUNNABLE
> at java.net.SocketOutputStream.socketWrite0(Native Method)
> at java.net.SocketOutputStream.socketWrite(SocketOutputStream.java:92)
> at java.net.SocketOutputStream.write(SocketOutputStream.java:136)
> at
> org.apache.activemq.transport.tcp.TcpBufferedOutputStream.flush(TcpBufferedOutputStream.java:115)
> at java.io.DataOutputStream.flush(DataOutputStream.java:106)
> at
> org.apache.activemq.transport.tcp.TcpTransport.oneway(TcpTransport.java:176)
> at
> org.apache.activemq.transport.AbstractInactivityMonitor.doOnewaySend(AbstractInactivityMonitor.java:322)
> at
> org.apache.activemq.transport.AbstractInactivityMonitor.oneway(AbstractInactivityMonitor.java:304)
> at
> org.apache.activemq.transport.TransportFilter.oneway(TransportFilter.java:85)
> at
> org.apache.activemq.transport.WireFormatNegotiator.oneway(WireFormatNegotiator.java:104)
> at
> org.apache.activemq.transport.MutexTransport.oneway(MutexTransport.java:68)
> at
> org.apache.activemq.transport.ResponseCorrelator.oneway(ResponseCorrelator.java:60)
> at
> org.apache.activemq.ActiveMQConnection.doAsyncSendPacket(ActiveMQConnection.java:1304)
> at
> org.apache.activemq.ActiveMQConnection.asyncSendPacket(ActiveMQConnection.java:1298)
> at org.apache.activemq.ActiveMQSession.send(ActiveMQSession.java:1782)
> - locked <0x23faa7d8> (a java.lang.Object)
> at
> org.apache.activemq.ActiveMQMessageProducer.send(ActiveMQMessageProducer.java:289)
> at
> org.apache.activemq.ActiveMQMessageProducer.send(ActiveMQMessageProducer.java:224)
> at
> org.apache.activemq.ActiveMQMessageProducerSupport.send(ActiveMQMessageProducerSupport.java:300)
> at
> org.activemq.bug.DeadlockDuringCloseTest$1.run(DeadlockDuringCloseTest.java:63)
> at java.lang.Thread.run(Thread.java:662)
--
This message was sent by Atlassian JIRA
(v6.3.4#6332)
